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Finding the Fourth Proportional to 73,484.73, 101,419.21 and 53,132.87

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Solution

The fourth proportional to 73,484.73, 101,419.21 and 53,132.87 is: 73,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,484.73 : 101,419.21 = 53,132.87 : x
  2. Step 2: Convert to fraction form
    73,484.73/101,419.21 = 53,132.87/x
  3. Step 3: Cross multiply
    73,484.73x = 101,419.21 × 53,132.87
  4. Step 4: Simplify right side
    73,484.73x = 5,388,693,700.43
  5. Step 5: Solve for x
    x = 5,388,693,700.43/73,484.73
  6. Step 6: Final answer
    x = 73,330.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.